Patents Represented by Attorney Wilkinson & Grist
  • Patent number: 7754444
    Abstract: This invention provides a method of detecting pathogens comprising the steps of: (a) contacting a sufficient amount of biofunctional magnetic nanoparticles with an appropriate sample for an appropriate period of time to permit the formation of complexes between the pathogens in the sample and the nanoparticles; (b) using a magnetic field to aggregate said complexes; and (c) detecting said complexes. The method may further comprise the additional step of removing said complexes. The biofunctional magnetic nanoparticles are preferably a conjugate of vancomycin and FePt. The pathogens may be bacteria or viruses, and the sample may be a solid, liquid, or gas. Detection may involve conventional fluorescence assay, enzyme-linked immunosorbent assay (ELISA), optical microscope, electron microscope, or a combination thereof. The sensitivity of detection for the method is at least as low as 10 colony forming units (cfu) of the pathogens in one milliliter of solution within one hour.
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: July 13, 2010
    Assignee: The Hong Kong University of Science and Technology
    Inventors: Bing Xu, Pak Leung Ho, Hongwei Gu
  • Patent number: 7714117
    Abstract: The present invention is directed toward biomarkers that identify characteristics of algae. The invention is further directed toward biomarkers that serve to identify algae species and strains of algae species as well as detect the presence of algal toxins. Additional embodiments feature methods utilizing algal biomarkers and polypeptides that can serve as biomarkers.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: May 11, 2010
    Assignee: Hong Kong Polytechnic University
    Inventors: Samuel Chun-Lap Lo, Leo Lai Chan, Ivor John Hodgkiss
  • Patent number: 7699819
    Abstract: A method of making zeolite microneedles includes providing a polymer microneedles template, depositing zeolite seeds on the polymer microneedles template, and growing the zeolite seeds into an array of zeolite microneedles.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: April 20, 2010
    Assignee: The Hong Kong University of Science and Technology
    Inventors: King Lun Yeung, Ling Wai Wong, Wenqing Sun, Wai Kin Leung, Wing Yan Lai, Ngar Wai Chan
  • Patent number: 7640879
    Abstract: A fabric-processing device includes a body, a presser foot attached to the body, and a heater attached to the presser foot. The heater is in a heat-exchange relationship with the presser foot.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: January 5, 2010
    Assignee: Clover Group International Limited
    Inventor: Wai Ching Andy Lau
  • Patent number: 7619823
    Abstract: A composite lenticular film includes a first layer having a first refractive index, and a second layer having a second refractive index less than the first refractive index. The second layer is integrally attached to the first layer. The first layer has at least one row of protruding lenses.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: November 17, 2009
    Assignee: Hong Kong Polytechnic University
    Inventors: Xiao-ming Tao, Xiaohong Sun
  • Patent number: 7618657
    Abstract: Disclosed are an extract from traditional Chinese herbal medicine Trichosanthes with the activity of increasing globin gene expression and a composition comprising the extract. A method for preparing the extract and use thereof in treating disorders related to globing gene expression is also provided.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: November 17, 2009
    Assignee: Ultra Biotech Limited
    Inventors: Ming Chiu Fung, Hong Tao Xing
  • Patent number: 7612614
    Abstract: Provided is circuitry for biasing a transistor amplifier with a DC-voltage signal, the transistor amplifier having a first input terminal, a second input terminal, and an output terminal coupled to the second input terminal. The circuitry includes a sensor capacitor connected to the first input terminal and an impedance transistor arranged in parallel with said capacitor, the transistor and capacitor forming a low-pass filter. The circuitry also includes a biasing circuit configured to controllably vary a DC-voltage signal for operatively biasing the amplifier, the biasing circuit including a cascaded current arrangement configured to subdivide a reference current into smaller currents for selectively generating voltage potentials for biasing the impedance transistor to adjustably filter a noise component of the DC-voltage signal via the low-pass filter before the DC-voltage signal is provided to the first input terminal.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: November 3, 2009
    Assignee: Kontel Data System Ltd.
    Inventors: Ping Wai Li, Cong Ke Li, Wei Wang
  • Patent number: 7592367
    Abstract: Three pairs of C-2 epimeric xanthones isolated from Garcinia hanburyi and method for efficiently separating the xanthone compounds into individual epimers, each of which possesses varying biological effects. The compounds are useful for their anticancer effects, particularly because they are shown to be non-substrates of the multidrug-resistance transporter. Some of the epimers have significant inhibitory effects on cytochrome P450 systems. The xanthone compounds of the present invention are gambogic acid, epigambogic acid, isogambogic acid, isoepigambogic acid, 30-hydroxygambogic acid and 30-hydroxyepigambogic acid.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: September 22, 2009
    Assignee: Hong Kong Jockey Club Institute of Chinese Medicine Ltd.
    Inventors: Quan-Bin Han, Jing-Zheng Song, Chun-Feng Qiao, Ling Yang, Hong-Xi Xu
  • Patent number: 7552739
    Abstract: A collapsible structure having a first fabric-covered frame defining a first side panel, a second fabric-covered frame defining a second side panel, a fabric sheet mounted on and extending along the first and second fabric-covered frames; and a plurality of frame supports mounted on the fabric sheet whereby folding of the frame supports drives the first and second side panels towards a collapsed and superimposed position, and unfolding of the frame supports drives the first and second side panels towards a spaced apart and expanded position, and wherein the first and second side panels in the collapsed and superimposed position can be twisted and folded into a compact configuration.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: June 30, 2009
    Assignee: Best Tide Mfg. Co., Ltd.
    Inventors: Wan Sing Chu, Lai Ha Wu
  • Patent number: 7541012
    Abstract: The present invention features a catalytic material which includes a metal catalyst anchored to a nano-sized crystal containing a metal oxide. Furthermore, the present invention features a method of producing the catalytic material described herein. Finally, the present invention features using the catalytic material for removing contaminants and for getting the desired products.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: June 2, 2009
    Assignee: The Hong Kong University of Science and Technology
    Inventors: King Lun Yeung, Nan Yao, Ka Yee Ho
  • Patent number: 7506983
    Abstract: A method for treating progression of a refractive disorder in a human eye. The method includes the steps of producing a first image on a retina of the human eye and producing a second image to generate a defocus.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: March 24, 2009
    Assignee: The Hong Kong Polytechnic University
    Inventors: Chi Ho To, Siu Yin Lam, Shau Kei Wan
  • Patent number: 6979491
    Abstract: The present invention provides a yarn with antimicrobial effects. The antimicrobial antifungal effect of the yarn is derived from nanosilver particles (diameter between 1 and 100 nm) which are adhered to the yarn. The yarn contains fibers which are made of cotton, linen, silk, wool, leather, blending fabric, synthetic fiber, or any combination thereof. The yarn can be used to make cloth to be used particularly for treating patients with burns or wound. The cloth made from the antimicrobial yarn can be further used to make clothes such as underwears, socks, shoe cushions, shoe linings, bed sheets, pillow cases, towels, women hygiene products, laboratory coats, and medical robes. The present invention also provides a method for making the antimicrobial yarn.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: December 27, 2005
    Assignee: CC Technology Investment Co., Ltd.
    Inventors: Jixiong Yan, Jiachong Cheng